CONTENTS 



page 



3 INTRODUCTION 



4 MEASUREMENTS 

 7 DATA 



20 SUMMARY OF DATA AND DISCUSSION 



27 CONCLUSIONS 



27 RECOMMENDATIONS 



27 REFERENCES 



28 APPENDIX: MULTIPLE CHANNEL TEMPERATURE 



RECORDING UNIT 



ILLUSTRATIONS 



page figure 



3 1 Examples of sea surface slick 



5 2A Measurement site off Mission Beach 



6 2B Measurement arrangement of ship and thermistor beads 

 8 3 Temperature structure and slicks 12 June 1958 



8-9 4A-C Temperature structure and slicks 24 June 1958 



11 5A,B Temperature structure and slicks 25 June 1958 



12 6A,B Temperature structure and slicks 26 June 1958 



13 7 Temperature structure and slicks 8 July 1958 

 13 8 Temperature structure and slicks 9 July 1958 

 15 9 Temperature structure and slicks 23 July 1958 



15 10 Temperature structure and slicks 24 July 1958 



16 11A,B Temperature structure and slicks 25 July 1958 



17 12 Temperature structure and slicks 6 August 1958 



18 13A,B Temperature structure and slicks 7 August 1958 



19 14A,B Temperature structure and slicks 8 August 1958 



21 15 Frequency distribution of all internal wave heights over 2 feet and internal 



wave heights with associated slicks for each of the 12 days during which 

 observations were made 



22 16 Composite frequency distribution of internal wave heights over 2 feet and 



internal wave heights with associated slicks for all data 



23 17 Frequency distribution of all internal wave periods over 2 seconds and internal 



wave periods with associated slicks for each of the 12 days during which 

 observations were made 



24 18 Composite frequency distribution of internal wave periods over 2 seconds and 



internal wave periods with associated internal waves for all data 

 Simple progressive internal wave between water of two densities p and p' 

 Sixteen-channel temperature measuring unit 

 Thermistor bead mountings 

 Thermistor bead circuit 



Bridge assembly for sixteen-channel temperature measuring unit 

 Example of time series and temperature readings on recorder tape 

 Example of repeated temperature recordings 



26 



19 



29 



Al 



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A2 



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A3 



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A4 



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A5 



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A6 



